Beryllium Disk

Beryllium Disk offers an exceptional combination of high stiffness-to-weight ratio, high thermal conductivity, and transparency to X-rays, making it indispensable in demanding aerospace, defense, and scientific instrumentation applications. Its low density and high modulus provide outstanding dimensional stability under mechanical stress, while its excellent heat dissipation capabilities ensure reliable performance in high-power systems. Industries such as aerospace engineering, satellite communications, and X-ray optics depend on beryllium disks for precision structural components, optical substrates, and radiation windows. Specific uses include mirrors for space telescopes, support structures in high-frequency radar systems, and beamline windows in synchrotron facilities. In research, Beryllium Disk is valued for its role in advancing particle physics experiments, X-ray imaging technology, and thermal management solutions in high-performance engineering. Its rare combination of mechanical, thermal, and radiative properties makes it a critical enabler in both industrial innovation and scientific exploration.

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Tolerance

Properties

Reference & Citations

Acute toxicity

Serious health hazard

each

Tolerances

Disc

Thickness	>0.05mm	±10%
Thickness	<0.01mm	±25%
Thickness	0.01mm - 0.05mm	±15%

Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	4
Crystal structure	Hexagonal close packed
Electronic structure	He 2s²
Valences shown	2
Atomic weight( amu )	9.01218
Thermal neutron absorption cross-section( Barns )	0.0092
Photo-electric work function( eV )	3.4
Atomic radius - Goldschmidt( nm )	0.113
Ionisation potential( No./eV )	2/ 18.2
Ionisation potential( No./eV )	1/ 9.32
Ionisation potential( No./eV )	4/ 218
Ionisation potential( No./eV )	3/ 154

Mechanical Properties

Element	Value
Material condition	Hard
Material condition	Soft
Poisson's ratio	0.02
Poisson's ratio	0.02
Bulk modulus( GPa )	110
Bulk modulus( GPa )	110
Tensile modulus( GPa )	318
Tensile modulus( GPa )	318
Hardness - Vickers( kgf mm⁻² )	150
Hardness - Vickers( kgf mm⁻² )	200
Tensile strength( MPa )	550
Tensile strength( MPa )	310
Yield strength( MPa )	345
Yield strength( MPa )	240

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	3.3@20@20°C
Superconductivity critical temperature( K )	0.026
Temperature coefficient( K⁻¹ )	0.009@0-100°C

Physical Properties

Element	Value
Boiling point( C )	2470
Density( gcm⁻³ )	1.848@20°C

Thermal Properties

Element	Value
Melting point( C )	1278
Latent heat of evaporation( J g⁻¹ )	32470
Latent heat of fusion( J g⁻¹ )	1350
Specific heat( J K⁻¹ kg⁻¹ )	1825@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	201@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	12@0-100°C